... meeting the ASTM A249/A269, A270, A312, A554 and DIN 11850 requirements.We are always improving our technique about welded ... Nickel, 17-19% Chromium) And so on. The original materials import form India, Korea and Taiwan, Such as YUSCO, BNG, POSCO ... Pickling, Polishing, Annealing, Inner Bead Removed, Inner Polishing. 3) Standards: DIN 118504) Mark: Steel Seal and Label5) Applied field: Pharmacy, sanitary ...